S’mores Chocolate Chip Cookies
This s’mores chocolate chip cookie recipe is the chocolate chip cookie version of a classic s’mores treat! The chocolate chip cookies are filled with pools of melted chocolate and studded with graham crackers. A giant marshmallow placed on top of each cookie then melts into a glorious ooey, gooey puddle. The best part? These beauties come together in just 15 minutes!
Why You Should Make S’mores Chocolate Chip Cookies
Here are all the reasons why you should make this s’mores chocolate chip cookie recipe:
These s’mores chocolate chip cookies are an homage to a classic, summertime, campfire treat.
Okay, hold the phone. If you’re not from North America, you might be unfamiliar with the whole concept of “s’mores” completely. I myself didn’t grow up eating s’mores and only discovered them when I moved to Texas from the Netherlands in high school!
So let’s rewind.
According to Wikipedia, the first recipe for s’mores was found in Tramping and Trailing with the Girl Scouts of 1927. The original recipe was simple and lists s’mores as we know it today:
Place a square of milk chocolate on a graham cracker. Toast a marshmallow and put on top of the chocolate, then a second graham cracker on top of the toasted marshmallow and squeeze and you will want “s’more”.
Pretty cute, right?
Since then, s’mores have taken on different shapes and sizes. Just googling around, there are a TON of recipes for different s’mores desserts. And on this blog, I have a recipe for s’mores cupcakes, no bake s’mores pie, and now, these chocolate chip cookies!
This s’mores chocolate chip cookie recipe is easy.
Before developing my own recipe, I researched popular s’mores chocolate chip cookies on Google. All of them looked plenty tasty! However, many recipes instructed bakers through more involved steps. Like processing graham crackers into crumbs, cutting marshmallows in half, melting chocolate, and making chocolate ganache. And okay, as a professional food blogger, I am no stranger to complicated or involved recipes. In fact, I embrace them! See this recipe for Japanese cheesecake and this mini banana chocolate chip recipe muffin (in which a commenter accused me of pontificating too much, lol).
However, a big part of the appeal of s’mores is their ease. In theory, any one can make a tasty, delicious treat with just three ingredients and a minimal cooking recipe like a campfire. As a result, I wanted my recipe to reflect this ease and convenience. So unlike other s’mores chocolate chip cookie recipes, my recipe comes together fairly easily. All you need to do is haphazardly crush some graham crackers into pieces and place a marshmallow on top of each cookie! That’s it.
These s’mores chocolate chip cookies come together quickly.
Because this recipe does not have any more involved steps, it comes together fairly quickly. It takes about 5 minutes to brown the butter, another 5 minutes to make the cookie dough, and a final 5 to shape it into cookies. Each sheet pan needs 10 minutes to bake in the oven. If you’re pressed for time, you can also skip the browning of the butter and use melted butter instead! Be sure to check out the ingredients section below for more information.
S’mores Chocolate Chip Cookie Ingredients and Substitutions
Now that I’ve convinced you to make this s’mores chocolate chip cookie recipe, here’s your shopping list for the recipe:
S’mores Chocolate Chip Cookie Recipe Shopping List
- unsalted butter
- all-purpose flour
- baking powder
- baking soda
- kosher salt
- dark OR light brown sugar
- granulated sugar
- large eggs
- pure vanilla extract
- dark (between 60% to 70%) chocolate, preferably from baking bars, discs, fèves, or wafers
- large marshmallows
And let’s talk about some of its key ingredients:
These s’mores chocolate chip cookies need ½ cup unsalted butter to make brown butter for its cookie dough base.
What Is Brown Butter?
Brown butter is made by cooking butter until the water in it evaporates and you’re left with a speckled, amber-colored liquid with a rich flavor and a wonderfully nutty aroma. Brown butter is typically used in recipes in liquid form, but can be chilled back to a solid form like regular butter.
In this cookie recipe, the brown butter gives the s’mores chocolate chip cookies a nutty, toffee flavor.
How to Use Brown Butter
You can use brown butter in both savory and sweet recipes. Traditionally, brown butter is used with ingredients that go well with nutty flavors. In desserts, brown butter is often used in traditional chocolate chip cookie recipes, brownie recipes, and even loaf cakes with “strong” flavors like banana or pumpkin.
How to Make Brown Butter
To brown butter, melt the butter in a light-colored saucepan over medium heat. Swirl the pan occasionally to help the butter melt evenly. Keep a heatproof rubber spatula nearby to scrape the bottom and sides of the pan occasionally to help prevent the milk solids from sticking and burning. Depending on how high the heat is and how cold your butter was to begin with, browning butter can take anywhere between 5 to 15 minutes. To speed up the process, you can slice the butter into smaller pieces to melt it faster.
As the butter melts, the mixture will begin to foam. It can be a little difficult to see what’s going on at this point, so use a heatproof spatula to push the foam to the sides of the pan as best as you can to help you see the color underneath. If you’re having trouble seeing the color of the butter, use a spoon to scoop a small amount of the butter onto a white plate to see its color more clearly. The color of the butter will progress from a bright lemon yellow to a golden tan and finally to a dark amber brown. The longer you cook the butter, the darker and more flavorful it will be. However, note that there’s a fine line between toasted and burnt. There’s no salvaging butter once it’s burnt, so be sure to watch it like a hawk as it browns.
Once you’re satisfied with the color of the butter, immediately remove the pan from the heat and pour the brown butter into a clean bowl or liquid measuring cup to prevent it from cooking further.
How to Store Brown Butter
Once cooled, transfer the brown butter to an airtight container and store in the refrigerator for up to 1 week.
What are the flecks in my brown butter? Is that normal?
Yes! Brown butter is typically spotted with dark golden flecks; these are browned milk solids. Some folks pour brown butter through a fine-mesh strainer to discard these milk solids, but I like to keep them in for extra flavor. You do you.
Can I use salted butter in this s’mores chocolate chip cookie recipe?
Yes! Most baking recipes instruct you to use unsalted butter; that’s because different brands add varying levels of salt to their salted butter. That means that the flavor of your dessert will vary depending on whatever brand of salted butter you happen to use.
That being said, I prefer the flavor of salted butter (and it lasts longer in the fridge, too) for these s’mores chocolate chip cookies. In general, I use salted butter in baked goods with “strong” flavors like chocolate, peanut butter, and whatever else. But I don’t recommend doing so for vanilla-flavored recipes, or anything delicate like frosting or cream recipes.
I’m pinched for time. Do I have to use brown butter in this s’mores chocolate chip cookie recipe? Can I use regular melted butter instead?
Yes, absolutely! If you don’t want to deal with browning the butter, you can go ahead and use melted butter in its place. You can see me demo it in the Instagram Story tutorial for this recipe on my Instagram profile. These are the circles of food underneath the bio. Click on one of the circles to view a step-by-step video tutorial of me making the recipe. You may need to scroll left or right to find the tutorial for this s’mores chocolate chip cookie recipe.
These s’mores chocolate chip cookies use ¾ cup brown sugar in the recipe.
Light Versus Dark Brown Sugar
Brown sugar is granulated white sugar with a touch of molasses to give it its signature color and flavor. Because brown sugar contains molasses, it adds more moisture to baked goods than granulated sugar otherwise would. Brown sugar is available in two varieties: light or dark. Dark brown sugar is my personal preference; because it contains more molasses, I find it to be more flavorful.
Can I use coconut sugar instead of brown sugar in these s’mores chocolate chip cookies?
Technically yes, but I don’t recommend it. Why? Coconut sugar is made from the nectar produced by coconut blossoms (not actual coconuts), which is then boiled and ground to create a granular substance with a texture similar to brown sugar. Folks like to use it as a substitute for brown sugar because its natural toasted brown color and caramelized taste is similar to that of brown sugar.
But that being said, coconut sugar has the same neutral pH level as granulated white sugar. Brown sugar, on the other hand, is slightly acidic. This acidic quality allows the brown sugar to react with the baking soda in the recipe to leaven the cookies and create their unique texture. So if you use coconut sugar in place of brown sugar, your cookies will likely have a very different texture than mine.
This s’mores chocolate chip cookie recipes uses 1 large egg to make the cookie dough.
I don’t eat egg because of allergies and/or my diet. What can I use instead of egg?
I’m sorry, but I don’t 100% know. I’m very fortunate that I don’t have those restriction in my household. So in general, my specialty lies in creating baking recipes with conventional ingredients. If you’re looking for eggless or vegan cookie recipes, I suggest checking out my friends Ashlae at Oh, Ladycakes and Laura at The First Mess. Both of them specialize in vegan cooking and will be able to help you out better than I can!
This s’mores chocolate chip cookie recipe uses 6 ounces dark chocolate from fèves or a chopped high-quality chocolate bar.
Bittersweet versus Semisweet versus Dark Chocolate
In the United States, there’s no official benchmark for the “bittersweet” and “semisweet” chocolate designations. It’s up to manufacturers to determine how much cocoa to use, and percentages will vary greatly from brand to brand. Technically, both bittersweet and semisweet chocolate are considered dark chocolate… but you never know. Because of this, I advise you to ignore these bars and stick with a dark chocolate that lists its cocoa percentage.
What are chocolate fèves?
Chocolate fèves are a fancy pastry school term for a flat, bean-shaped disc of chocolate. When baked in a cookie recipe, the fèves don’t hold their shape (similar to how chocolate chips typically do) and instead melt into puddles. These puddles give your cookies thin layers of chocolate throughout every bite.
The most prominent maker of chocolate fèves is one of my favorite chocolate makers, Valrhona Chocolate. For these cookies, I used Valrhona’s Guanaja 70% dark chocolate fèves. You can buy them online and/or at select Whole Foods Market locations.
Do I really need to use fèves?
If there’s one thing I want you to take away from my blog, it’s this: don’t skimp on chocolate. Most grocery store brands—even the ones that offer products specifically made for baking—contain all sorts of additives like paraffin wax and palm oil. These ingredients compromise the flavor and texture of your results. I’ve stopped using chocolate chips in 90 percent of my recipes, and my baked goods have tasted so much better as a result.
What other chocolate do you recommend besides fèves?
If you can’t find fèves, I also recommend Guittard Chocolate Wafers (which are more readily available in most major supermarkets). If you’re on a budget, I recommend chopping up a Trader Joe’s Pound Plus bar or Ghirradelli baking chocolate bars instead of chocolate chips. Chop up the chocolate into fairly large 1/2- to even 1-inch chunks. Doing so helps give you big chocolate puddles throughout the cookie.
You can see the full list of my recommended chocolate for baking in this updated recipe for Toll House chocolate chip cookies.
Can I use Hershey’s Milk Chocolate Bars in this s’mores chocolate chip cookie recipe instead?
No, please don’t. Although s’mores are typically made with Hershey’s Milk Chocolate Bars, do NOT use them in these cookies. I tried. It didn’t work. Hershey’s chocolate bars contain too many additives to melt properly in the oven. You want to shell out for the “good” chocolate here, whether it’s Valrhona feves I recommended above or your favorite expensive pretentious dark chocolate bar, chopped up by hand. Good chocolate will melt into puddles throughout the cookie, emulating the way chocolate melts in a classic s’more.
This s’mores chocolate chip cookie recipe uses 2 ounces (57 grams) graham cracker cookies (from about 4 sheets of graham crackers).
The Best Graham Crackers for S’mores Chocolate Chip Cookies
These days, graham crackers come in all sorts of different flavors: honey, vanilla, chocolate, cinnamon. You can use whichever flavor you prefer and your cookies will be plenty tasty. But I personally like sticking with the honey variety for a classic s’mores flavor.
Can I use another kind of cookie or cracker (like Biscoff or Trader Joe’s Speculoos) for these s’mores chocolate chip cookies?
Yes, with reservations. I’ll admit—I made a few versions that used speculoos cookies as a substitute for graham crackers. They were also delicious, but graham crackers really are what make s’mores, well, s’mores.
You need 18 marshmallows for this s’mores chocolate chip cookie recipe.
The Best Marshmallows for S’mores Chocolate Chip Cookies
You can get away with using the classic Kraft Jet-Puffed kind you know and love from your childhood. Just be sure to get the large kind—although smaller or mini marshmallows will work in a pinch, to get the EXACT look of my cookies, you need a big marshmallow to melt into a huge, gooey, glorious puddle.
However, for my s’mores chocolate chip cookies, I used this fancy kind from Smashmallow. At first I bought them only because I liked their square shape (though apparently Jet-Puffed makes square ones too, even ones that stack!). But then I realized that the Smashmallow Toasted Vanilla flavor literally comes pre-torched! That means that they’ve already got the Maillard reaction kickstarted in them, making them tastier and more authentically s’mores flavored. They bake up beautifully too, giving the puddles a kind of ombre look.
If you want that look for your cookies but can’t find Smashmallows, use a chef’s torch to gently and quickly lightly brown the tops of the marshmallows you’re planning on using. Don’t have a chef’s torch? No problem—toasting them on the stovetop like you would over a campfire works just as well.
Can I use mini marshmallows for these s’mores chocolate chip cookies instead?
In theory, yes, but I don’t recommend it. If you use mini marshmallows, your s’mores chocolate chip cookies will still be plenty tasty. However, they will look nothing like mine. Their texture also won’t be the same. Larger marshmallows—the kind you use for s’mores at campfires—are key to this recipe. At the end of the day, mini marshmallows just don’t melt and spread in the same way.
How To Make S’mores Chocolate Chip Cookies From Scratch
Here are the basic steps to make this s’mores chocolate chip cookie recipe:
First, brown the butter.
- Brown the butter. (Work Time: 5 minutes)
Depending on how high the heat is and how cold your butter was to begin with, browning butter can take anywhere between 5 to 15 minutes. I like to brown the butter first to give it time to cool slightly while I prep the rest of the ingredients for the cookies. This also helps prevent you from accidentally scrambling the eggs in the dough (which can happen if you add butter that’s too hot or warm to the dough).
Next, make the cookies.
- Prep your ingredients. (Prep Time: <5 minutes)
Thankfully, prep for this recipe is fairly easy. Simply measure out all the ingredients, and chop the chocolate if needed.
- Make the cookie dough. (Work Time: 5 minutes)
The cookie dough comes together really, really quickly. First, whisk together the dry ingredients. Then, beat together the brown butter, sugars, egg, and vanilla. Stir in the dry ingredients, then the chocolate and graham cracker pieces. That’s it!
- Next, scoop the cookie dough into cookie dough balls and top with marshmallow. (Work Time: 5 minutes)
The fastest and easiest way to portion cookie dough is with a cookie dough scoop. Most cookie recipes work best with either a 3-Tablespoon cookie dough scoop (my personal fave for cookie recipes!) or a 4-Tablespoon cookie dough scoop. Use the scoop to portion the dough into cookie dough balls. Place the cookie dough balls at least 3 inches apart on a lined sheet pan as you go. You may need to use more than one sheet pan. Then, place a marshmallow on top of each cookie dough ball.
- Finally, bake the cookies. (Bake Time: 10 minutes per pan)
Bake for 10 minutes, or until the edges have set but the centers are still gooey. It is better to underbake the cookies by pulling them out earlier rather than later—they’ll continue to cook on their sheet pans, but leave you gooey, fudgy centers.
S’mores Chocolate Chip Cookie Recipe Troubleshooting and FAQ
FAQ: S’mores Chocolate Chip Cookie Recipe Techniques
Do I need to use a stand mixer to make these s’mores chocolate chip cookies?
Honestly, you can get away with NOT using a mixer for this recipe. In my Instagram Story tutorial for this recipe, I made the cookie dough by hand with two regular bowls. In one bowl, I mixed the dry ingredients like flour, baking powder, baking soda, and salt. Then, in the second bowl, I mixed the butter, sugars, egg, and vanilla by hand, before mixing in the dry ingredients.
You can see me demo this method on my Instagram profile. On my Instagram profile, there are circles of food underneath my bio. Click on one of the circles to view a step-by-step video tutorial of me making the recipe. You may need to scroll left or right to find the tutorial for this s’mores chocolate chip cookie recipe.
FAQ: S’mores Chocolate Chip Cookie Recipe Results
Help! My cookie dough is SUPER greasy, and the dough feels too loose to scoop. What did I do wrong?
Don’t panic! We can fix this pretty easily. If your dough feels greasy and loose, it’s likely that you used the butter while it was still too hot. To fix the issue, simply place the entire bowl of cookie dough in the refrigerator for 10 minutes. Doing so will help the dough firm up. After 10 minutes, check the dough. If it still feels too loose, give it another 5 to 10 minutes in the fridge. However, I don’t recommend chilling it for longer—doing so will harden the cookie dough too much and make it really hard to scoop!
Help! My s’mores chocolate chip cookies spread way too much. They look much thinner and more brittle than yours. What did I do wrong?
Ah. First things first, scroll up and read the preceding question and come back. Now—did you bake the cookies when the dough felt super greasy and loose? If so, that means that the butter was still too hot from being melted. Butter that’s too hot causes the cookies to spread out way too much in the oven, creating thin and brittle cookies.
Alternatively, if you chilled the cookie dough and your cookies still came out too thin and brittle, you may have an ingredients issue. It’s likely that you used way too much sugar by accidentally packing in too much in the measuring cup. See the next question below for more info on how to properly use measuring cups!
Help! My cookies came out too puffy. They didn’t sink after baking and don’t look flat like yours. What did I do wrong?
Okay, there are a few things that could be responsible for overly puffy s’mores chocolate chip cookies:
You didn’t measure your ingredients properly.
Let’s talk about how you measure ingredients. If you used cup measures as opposed to weight measures, there’s a larger chance your cookies will come out puffy. Why? As weird as this sounds, there’s a LOT of variation in how people use measuring cups. Like, somebody who scoops ingredients into a measuring cup and packs it down as they go will have a cup that has way more ingredients than somebody who simply scoops the flour into a cup and levels it off as its filled. This is why bakers love measuring by weight with a digital scale instead—it’s much more reliable and completely eliminates any inconsistencies.
While these variations aren’t a big deal for many recipes, they can be a big deal for cookies. Specifically: if you pack a heavy cup of flour, your cookies will come out too puffy. They won’t fall and sink in the same way as mine did.
So the correct way to fill a measuring cup is this: set the measuring cup on a flat, level surface like your kitchen counter. Spoon the ingredient you’re measuring into the measuring cup until it forms a small mound within the cup. Use a butter knife or bench scraper to level off the mound so that the ingredient is flush with the top edges of the measuring cup. If you’re measuring a dry ingredient that has a tendency to clump or get packed down (like flour, confectioners’ sugar, or cocoa powder), give them a quick whisk in their bags or containers first before scooping into the measuring cup.
You didn’t break your graham crackers into small enough pieces.
When testing this recipe, I found that leaving larger, 1 to 2 inch pieces of graham crackers sometimes made the cookies too puffy and prohibited them from falling flat. It’s still plenty tasty. But if the puffy look bothers you, crush your graham crackers up into smaller pieces!
FAQ: Storing S’mores Chocolate Chip Cookies
How To Store S’mores Chocolate Chip Cookies
After baking, the cookies can be stored in an airtight container or zip-top bag at room temperature for up to 3 days.
Can you freeze s’mores chocolate chip cookies?
Yes! You can freeze the unbaked s’mores chocolate chip cookies.
To freeze these s’mores chocolate chip cookies, follow the recipe instructions to make the cookie dough and scoop them out into cookie dough balls. Place the cookie dough balls in a small sheet pan. Loosely cover the pan with plastic wrap and freeze for at least 1 hour, or until the cookie dough balls are frozen solid. Transfer the cookie dough balls to a zip-top bag and freeze for up to 3 months.
When ready to bake, follow the recipe’s instructions to arrange the cookie dough balls on sheet pans. Place a marshmallow on top of each cookie dough ball. Then, preheat the oven as instructed in the recipe. There’s no need to thaw the cookie dough beforehand. HOWEVER, it’s important to place the chilled cookie dough balls on lined sheet pans, THEN preheat the oven. It usually takes 10 to 15 minutes to preheat an oven. During this time, the cookie dough balls will thaw slightly and start to come to room temperature—this is a good thing! If you bake them straight from the fridge while they’re still cold, the cookies tend to stay puffy and don’t sink as much. However, this slight thawing period during the oven preheating process ensures that the cookies will fall flat when baked.
Best S’mores Chocolate Chip Cookie Recipe Tips
Best Ingredient Tip
- In the recipe below, I instruct you to use graham crackers that are hand-broken into ½- to 1-inch pieces. The trick is to not think about it too much and break the graham crackers by hand into fairly large, random, and uneven pieces. Throw it all into the mixer all at once—the beater will crush some of the graham crackers into fine crumbs, while keeping other pieces in bigger shards, giving each bite of cookie lots of different graham cracker textures with every bite.
Best Technique Tips
- When placing the marshmallow on top of each cookie dough ball, lightly place each one on top of its ball; it doesn’t really stick since the cookie dough is too greasy. You can quickly pat the top of each dough ball too to make a plateau on which to rest the marshmallow on.
- Some of the marshmallows are going to fall off the cookies as they sink and expand in the oven. It’s fine if they end up a little lopsided—it’s what makes the cookies pretty! But it’s DEFINITELY a problem if they fall off completely. Why? If they fall off, they’ll melt into a puddle on the pan, leaving you with a sticky mess to clean. And then some of your cookies won’t have any marshmallows on them, defeating the whole point of this s’mores chocolate chip cookie recipe!
To prevent these issues, I recommend peeking in the oven about 2 to 3 minutes into the baking time to see if any marshmallows have fallen off. If they have, don’t worry about it too much! Quickly open the oven door, reach in there, and re-position the marshmallow back onto its cookie dough ball. At this point, the marshmallow will still solid enough to handle. Just don’t squish too hard—it should already be getting a little melty! Peek into the oven again 6 minutes into the baking time and make any adjustments as necessary.
Best Baking Tip
- I like to bake the cookies one pan at a time. I find that doing so makes the best cookies, ensuring that none of them have overly burnt bottoms or raw centers. However, to save time, you can bake two sheet pans at a time. Position a rack in the upper-third position of the oven, and a second one in the lower-third position of the oven. Bake a pan on each rack, swapping their positions half way through the Bake Time.
Best Serving Tip
- Although these cookies are best when served warm and gooey (about 10 to 15 minutes after pulling them from the oven) for the authentic s’mores experience, getting them off the pan can be a bit of a pain. Why? The marshmallow is still sticky and melty—it will cling on to the pan with all its might. If you want your cookies to remain in tact, wait until they’ve cooled completely to room temperature. Then, use a still metal spatula and run it underneath the bottom of each cookie to unstick any melted marshmallow.
Video Tutorial for S’mores Chocolate Chip Cookies Recipe
Use the video player below to watch my Instagram Story tutorial on how to make this s’mores chocolate chip cookies recipe! The arrows to the left and right of the frame allow you to skip through the different recipe steps. You can also hit the “pause” or “enlarge” buttons on the upper right hand side of the frame to pause or enlarge the frames accordingly.
Alternatively, head to my Instagram profile to watch these Stories on mobile! The circles underneath my bio indicate saved Instagram Story highlights depicting various recipes. Clicking on one of the circles will play the videos you see above. You may need to scroll right to find this s’mores chocolate chip cookie recipe.
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- My Best Chocolate Chip Cookie Cake Recipe
- The Toll House Chocolate Chip Cookie Recipe, Elevated
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S’mores Chocolate Chip Cookie Recipe
For the S'mores Chocolate Chip Cookies:
- ½ cup (4 ounces or 113 grams) unsalted butter, cut into 1-inch cubes
- 1⅔ cup (7.5 ounces or 213 grams) all-purpose flour
- ½ teaspoon baking powder
- ½ teaspoon baking soda
- 1 teaspoon kosher salt
- ¾ cup tightly packed (5.65 ounces or 160 grams) dark OR light brown sugar
- ¼ cup (1.75 ounces or 50 grams) granulated sugar
- 1 large egg
- 2 teaspoons pure vanilla extract
- 6 ounces (170 grams) dark chocolate (between 60% to 70% cocoa), from whole Valrhona fèves or a high quality chocolate bar, chopped into ½ to 1-inch pieces
- 2 ounces (57 grams) graham crackers (from around 4 sheets), hand broken into ½- to 1-inch pieces
- 18 large marshmallows, preferably Smashmallow Toasted Vanilla marshmallows
For the S'mores Chocolate Chip Cookies:
- First, brown the butter. In a light-colored saucepan, melt the butter over medium-low heat, swirling the pan occasionally, until it starts to foam. Use a heatproof rubber spatula to scrape the bottom and sides of the pan occasionally to prevent the milk solids in the butter from burning. Cook for 5 minutes, or until the butter smells nutty and is amber with dark flecks at the bottom of the pan. Remove from the heat and immediately pour the brown butter into a liquid measuring cup. Set it on a wire rack to cool while you prep the other ingredients.
- Prep your oven and pans. Position a rack in the center of the oven and preheat the oven to 350°F. Line two half sheet pans with parchment paper.
- Mix the dry ingredients, then mix the sugars. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. In the bowl of a stand mixer fitted with the paddle attachment, combine the sugars.
- Mix the butter and sugar, then add the egg, vanilla, dry ingredients, and chocolate. Pour the butter over the sugar in the mixer bowl and beat on low until just combined. Add the egg and vanilla and beat until just combined. Use a rubber spatula to scrape down the bottom and sides of the bowl. With the mixer on low, gradually add the dry ingredients and beat until just combined. Scrape down the bottom and sides of the bowl once more, and beat on low for an additional 30 seconds. Increase the mixer to medium-low, add the chocolate and graham crackers all at once, and beat until both is evenly distributed throughout, about 1 minute.
- Assemble the cookies. Use a 3-tablespoon cookie dough scoop to portion the cookie dough into balls, placing them at least 3 inches apart on the prepared sheet pans. Lightly place a marshmallow directly on top of the center of each cookie dough ball.
- Bake the cookies. Bake one pan at a time for 10 minutes, or until the edges have set but the centers are still gooey. The cookies will look puffed when you pull them out of the oven, but will fall and crack into the perfect cookies as they cool. Cool the cookies on the pan on a wire rack for 20 minutes, or until the edges and bottoms of the cookies have set and feel firm to the touch. Repeat with the remaining cookie dough.
- Serve and store. Before serving, use a stiff metal spatula and run it underneath the bottom of each cookie to unstick any melted marshmallow. Serve warm or at room temperature. The cookies can be stored in an airtight container or zip-top bag at room temperature for up to 3 days.
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NO TIME TO BAKE?!
Over the past several years of running Hummingbird High, I kept a crucial aspect of my life hidden from my readers: I had a full-time, extremely demanding job in the tech world. In my debut cookbook, Weeknight Baking, I finally reveal the secrets to baking delicious desserts on a tight schedule.